1838719413 has 16 divisors (see below), whose sum is σ = 2731848000. Its totient is φ = 1222294320.

The previous prime is 1838719411. The next prime is 1838719417. The reversal of 1838719413 is 3149178381.

It is not a de Polignac number, because 1838719413 - 2¹ = 1838719411 is a prime.

It is a super-3 number, since 3×1838719413³ (a number of 29 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838719411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88143 + ... + 106988.

It is an arithmetic number, because the mean of its divisors is an integer number (170740500).

Almost surely, 2^1838719413 is an apocalyptic number.

It is an amenable number.

1838719413 is a deficient number, since it is larger than the sum of its proper divisors (893128587).

1838719413 is a wasteful number, since it uses less digits than its factorization.

1838719413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195489 (or 195483 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 1838719413 is about 42880.2916617879. The cubic root of 1838719413 is about 1225.1007914846.

The spelling of 1838719413 in words is "one billion, eight hundred thirty-eight million, seven hundred nineteen thousand, four hundred thirteen".